Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to 2627562e601e7a07865af79b9ab5acb77c1d6759
  - Merge "TAPI controller Topology"
  - TAPI controller Topology
    
    Discovery to support MDONs use case
    
    Change-Id: Ie5a2c9e3ceb17520017ea7ae6210b0699feb7977
    Issue-ID: SDNC-928
    Signed-off-by: Franklin Dsilva <franklin.dsilva@us.fujitsu.com>
    
diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index a8786c7..2627562 160000
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit a8786c7978848bf99e8f437fb0083fce94fdf00f
+Subproject commit 2627562e601e7a07865af79b9ab5acb77c1d6759